Through the end of September, the average temperature in Philadelphia has been has been 62.2 degrees. That makes 2012 3.5 degrees hotter than the average, average temperature since 1981. It also means that 2012 is on pace to be the warmest year on record.
Also falling into the warmest-ever category were Allentown, Harrisburg, Scranton, Williamsport and Pittsburgh in Pennsylvania, Atlantic City in New Jersey, and Wilmington in Delaware.
The data was also calculated by state. Over the last 118 years in Pennsylvania, this year’s January-to-September period was the second warmest, behind only 1921.